Welt-fitting machine.



fj. A.-BRO'GAN.

WELT FITTING MACHINE.

APPLIcA'HoN man APR. 1. '$916.

Pmmdl iw M, 1917.

Y 6 SHEETS-SHEET I.

Y- J. A. tBROGAN.A WELT muws MACHINE. APPLICATION FILED APR. l. 15H6.

Pam D@ M 1917,v

l. W BROGAN WELT Flr-Tmc MACHINE.. APPLVlcMloN man Avn. 1g. ma;

Mmm man, ww.'

' J. A. BROGAN.

WELTHTTING MACHINE.

MPucAnow min Pm-1. Ism.

.mmm am., u, ww.

6 sains-SHEET as.

. M. BRUGAN.

WELTHIWNG MACHINE.. APPLlcATlou mw mm. r. ma.

A' Mmm 1L WW..

LA. BROGAN. l. WELT FITTING IVIACHINE. IIPIIICII'IOIII FILED APR. 7| I9I6.

@I Mmmm, Im?.

JM 1 I e nacnnnr conn anneau.

roazzwkam'amy 0mm y Beit known that ll, JAMES mBuosAN, a

citizen of the United States, residing at Lawrence, in the county of'lEsseX and btate of Massachusetts, have invented'certain new andv useful improvements in Welt-Fitting Machines; and l do hereby declare the ioln lowingto be a full, clear, and exact-description of fthe invention, such as will enable others ,skilled Vinthe artto which. it appertains to make and use the same.

This invention relates to welt fitting maf chines, and morev particularly to machines for forming a groove and bevel on the innerl edge of the welt. y A

ln my copen application, Serial No. 7 97 ,025, iiled nUvctober 24, 1914, is shown and described a machine-for making a welt in which the` grooved and beveled edge is formed by molding and compressing the welt and the grain face of the leather is pre-4 served onthe bevel. t

rllhe primary object ol' the present' invention is to provide a .machine or improved construction for more edectively compress-` ing and molding a groove and bevel on the innerv edge of a welt. I

With this and other objects in view, the invention consists in the improved welt grooving and beveling machine hereinafter described and set forth in the claims.

The various features of the invention are illustrated in the accompanying drawings,

in which Figure 1 is a. view in side elevation oir' a welt grooving and beveling machin'eembodying thepreferred form of .the invention; t

Fig. 2 is an enlarged view in side elevation of the upper portion of the machine illustrating the gearing for operating the various portions of the machine;

Fig. 3 is a front elevation oi the machine;

Fig. 4 is a rear elevation of the machine with parts broken away;

Fig. 5 is a vertical sectiontakenlongitu-y dinally of the machine;

Fig. 6 is a plan view of the machine showing the welt guides, the upper molding rolls being removed;

Fig. 7 isa d tail view illustrating the operation oi the first set ofmolding rolls upon the welt;

Fig. 8 is a detail view illustrating the opspeciication ol Letters Patent. Patmtiedl Mmm, im, 111W?, 1 amiueanca nieu april r, raie. i serial irc. eater. 1 l

eration of the second set of moldingrolls upon the welt;`

4F g. 9 1s a detail view illustrating the cpr;

eration of the third s et of mol rolls upon'. the welt;

' Fig. 10 is a perspective view ci' the ,weltv to be tempered. lt is then passed through a series of welt guides to a grooving knife, and after being grooved, is passed between three sets of mo rolls' which mold and compress the oove and bevel. 'lhe welt is finally con ucted through a dedector which bends the welt about its grooved edge.'

The moistening device (Figs. 1 and 11)l consists oi a tank 18 mounted upon a bracket 20 attached to the machine frame, and having a liquid inlet 22 and a liquid outlet 24 `to hold the moistening liquid at a predeter- 'lhe welt passes -inja single mined level. strand through the tank around a series of rolls 26 carrled in a frame 28, which consists oi a pair of side plates between which the rolls are rotatablymounted. The iront end of the iframe' is mounted on a-pivot 29 grooving` and lievelingv machineillustrated in the drawings, the welt is 'first conducted through a moistening liquidV secured in the tank 18, andone or the side plates of the frame has a handle 30 by which the frame may be lifted out of the tank when threading the welt over the rolls pre'- paratory to starting the tting operation. The plate of` the frame 28 opposite the handle 30 normallyi terminates substantially Hush with theitop of the tank 18, and a spring clip 32 projects over-the edge of the plate to hold the frame 28 in the tank while the welt is being drawn through the liquid.

After the welt has been moistened and tempered it passes over a roll 34 mounted in a bracket 36 which is attached to the front of the machine head 37. From the roll 34 the welt passes between an inner edge guide 38 and an outer edge guide 4 0 (Figs. 5,' 6

and 12). The inner edge guide consists ofv a plate which is cut away to enter between.

the molding rollsA and is adjustably mounted lupon the machine head by a series of screws 42 and slots 44. The inner edge guide engages the edge ofthe welt to be groo'ved and beveled and may be adjusted transto provide for different widths of welt. The

block 52 (Figs. 5 and 12) is slidably mounted on a series of intermediate driving shafts 54and is adjusted by means of a hand screw 56 which passes through the machine head 37 and is threaded into the block. With the above construction, as the welt passes through the machine it is held between the inner edge guide 38 and the outer edge guide 40. The grain face of the welt rests upon the bottom guide 50, and the flesh face of the welt is covered by the plate 48. To facilitate threading a new strip of welt through the machine, the cover plate at the front end of the guides consists of a hinge 58 (Fig. 6), one plate of which is fixed on the guide 38, and the other plate of which swings across the top of the welt and rests upon the top of the bottom guide 50. The movable section of the hinge is normally held in a position to uncover the welt by means of a spring60, and is held down upon the` welt during the grooving operation by means of a latch 62 which is pivoted to the machine head 37. l

The deflector for'hending the welt toward the grooved edge after it has been grooved and beveled consists'of a curved guiding face 64.Y formed on thev outer edge guide 40 and a curved guiding face 66 on the inner edge guide 38. As the welt emerges through .the guides 64 and 66 it is bent toward the grooved edge, and since it is in a moist temper it will readily respond to the bending and retain its deflected shape.. To hold the welt between the guides 64 and 66 a plate 68 is loosely lhinged lbetween the guides and rests on the top of the welt.

In order that the groove and bevel may be formed` in the starting end of the welt, a

preliminary feed roll 70 is placed immedi-y ately in advance of the grooving knifeto feed and position the .welt beforeit reaches the grooving knife. The feed roll 70 is mounted upon a shaft 72 which is journaled in a carrier 74. The carrier 74 is pivotally mounted in the end of a floating arm '7 6 upon a shaft 78. The arm 76 is loosely pivoted in a bracket 7 which is attached to the front of the machine head `so that the feed the cutting edge of the knife.

carrier 104 has a deflecting face 112 which' roll 70 may move toward and away from the welt. The feed roll 70 is yieldingly held upon the welt by means of a spring 80 (Figs. l1 and 2) which is connected between a turn buckle 82 mounted in the bracket 20 and a strap 84 which engages the carrier 74. Thev feed roll is positively drivenrby means of gears 86 and 88 mounted on the shafts 72 and 78 respectively, the gear 88 meshing with a gear 90.0n a shaft 92 mounted in the arm 7 6, and a driving gear 94 fixed to the gear 90 and meshing with a gear 96 on one of the intermediate driving shafts 54. With this construction the feed roll has `a freedom of movement toward and away from the welt during the feeding operation. To give the feed roll an effective bite on the welt, a bearing roll 98 is mounted in the bottom guide 50 immediately below the feed roll (Fig. 5.). A series of feed teeth 100 are formed on the roll 70, which penetrate the welt to prevent the welt from being moved away from the inner edge guide 38. In this way the inner edge of the welt will be securely held against the guide 38 while it is being acted upon by the grooving knife.

The preliminary feed roll advances the welt to a grooving knife 102 which is held in a knife carrier 104 adjustably mounted on a movable section 106 of the machine head (Figs. l, 2.and 5). The lmife 102 is secured in position in the carrier by means of a screw 108, and a gage 110 is pivoted to the side of the carrier, which may be swung down in front of the carrier to accurately set The knife deflects the shavings `from the knife over to a. chute 114 arranged to discharge toward the base of the machine. A shield 116 is mounted in front of the knife which aids in guiding the shavings down through the chute 114. The knife carrier is adjustable toward and from the welt to vary the depth of groove, by means ofa thumb screw 118 which is fixed in a bracket 120 attached to the machine head 106, and is threaded into the upper end of the carrier 104. The adjusted position of the carrier is maintained by means of a set screw 122 which works in a slot 124 formed in the carrier. The knife carrier may be adjusted transversely of the machine (Fig. 3) Iby means of a hand screw 126 which is mounted in the machine head 106 and is threaded into a shank formed in the bracket 120. The adjusted position of the bracket 120 is maintained by means of set screws 128 which are mounted in the machine head and pass through slots 130 in the bracket. To provide a bearing for the lmife to cut against, a roll 132 is mounted on a preliminary driving shaft 54 immediately under the cutting edge of the knife.

After the welt has been grooved, it is conducted between three sets of molding rolls Leraren 106 of the machine head. 'lhe lower mold` ing rolls which contact the grain face of the leather are pinned `'to the. lower molding shafts 136 whicharesjournaledl in the ma# chinehead 37..l of ff-f: :o -L ff' Viewing Fig. 7, the upper molding roll 138 Y of the first set has a peripheral rib 140,::which is shaped to compress theside of the groove toward thei outer edge ofthe, welt. rJlhe lower molding :rolli142 has-'aperipheral groove 143 semi-circular in shape',-imm`edi ately opposite the rib 140,=to assist .in preliminarily vforming the bead 144 on the grainside ofthe welt. c rJFhe rolls 138 and 142 assist in feeding the welt, and the upperv molding roll has a series of feeding teeth 145 which pierce the flesh side ofthe welt and form. a series of indentations 146 on the Hesh side. 'lhefeed teeth 144act to hold theinner edge of the welt from movement away from the inner edge guide 38.

`Viewing Fig. 8, theupper roll 147 of thev second set of molding rolls has a peripheral ribV 148 which'4 is Substantially lf-shaped and acts in formin' both sidesof the groove.

, lhe lower'molding roll 150has a peripheral groove 1552 opposite the rib 148, and this groove is shaped to preliminarilyform the bevel 153 on the welt. 'lhe'srolls 146 and 150 also act t0 feed the welt, anda series of feed teeth154 are vformed .on. the roll 146 similar to thefeed teeth 145cm the'lroll`138.

Viewing Fig..19, theA upperfm'oldin roll 156of' the third set of molding lrolls as'fa peripheralfrib 158 which has ashape opposite the shape ofthe rib 140, and acts on the side of the lgroove adjacent the inner` edge of the welt. The lower molding roll 160 has a peripheralygroovev162oppositethe ribvv ,158,- and this( groove is shaped togive the final shape-to the bead and bevel of the welt on the grain side. The rolls 156 and 160` also act to feed the welt, and a series of feed teeth 164 are formedon the r0ll,156, `similar to the teeth 145 onv the. roll-138, .to place indentations on the esh side ofthe welt.

As shown in Figs. 7, 8 and 9, the feed teeth,

145,154 and 164` project .dierent distances from the face., of the rollsv 138, 147 and 156 respectively, and these actto progressively enlargeiand deepen the -indentations 146 placed .upon the fleshside of the welt. The .Y

:meshes with. thev gear 196 on the shaft'136 ribs and grooves on the molding ,rolls tend to stretcher lengtheny the'inner edge of theA welt, and the teeth on the moldin rolls act llt Hector it has a tendency to bend toward the inner edge of.. the'welt.- During the compressing operation the welt is in' a moistened and tempered condition, so` that the shape imparted is permanently retained by the outer edge' of 'the' welt by meansofleaf springs 166 whichiare attached to the'v ide 40 andjbear 'against'the' free ends o the .presserfeetg `l .'lo give access to the molding rolls and grooving knife, the movable 'portion 106 of the machine head is pivotedv to the lmain portion of the machine head 37 `by `a hinge 168 (Figs. 6 and 12) and can vbe swung up away from the welt guides.- During the normal operation of the machine the pivoted head 106 is positioned relatively-to the main portion of the machine head by means 'ofa link 170 (Figs. 1, 2, 3, 4 and 12) which is connected between abracket 172 on the machine head 37 and a bracket 174 on the movable section of the machine head 106. When the movable sectionis to be moved` away from thej main section' of the machine head, a pin17 6 is' removed from the bracket 172 to free the link170. 'loadapt themachine Vfor placing different pressures on the various kinds of welt while forming the groove and bevel, an adjusting bolt 178 con'- nects theA upper end of the link 170u with the bracket 174', and an eccentric portion 180 vof the bolt passes through-the link`170. The adjusting bolt 178 has a series of graduations 182 on its head (Fig. 3) which move 'finder a. pointer 184 onthe bracket 174 to indicatethe positions of the machine' head 106d for` different pressures on the welt.

llhe power 4for driving the feeding rolls V and the molding` rolls is derived from a power belt 186 (Figs. 2 and 3) which is shifted back and forth between a loose pul- 198 on an intermediate driving shaft 54 t0 the left of the ldriving shaft 192, Fig'. 2,

ofthe -lower'molding roll: 150 =and"`=a gear 196 on the shaft 13.6 of theflower molding :roll 160. An. intermediate, gear 200 ion an intermediate driving shaft 54 at thel right' of the driving shaft 192,"meshesvwithl 'the gear 1301` The bead 196 onthe shaft 136 of the lower molding roll 142 and a gear 202 on an intermediate driving shaft 54. A gear 204 on a lowerv attached. lBy enlarging or exaggerating so that the groove can be placed close to the the bead it can be formed to imitate a cork sole. With the improved welt the grain face of the leather is preserved on the bevel inner ed e and thus a narrower welt can beused or the same kind of shoe making than was heretofore possible. The grain face ofthe welt is `the stronger portion, and since the groove is consolidated and compressed, the stitch receivingportion of the welt is strengthened by the operation vof the improved machine. The welt is moistened' before being operated Aupon, and can be easily molded and compressed into the desiredl shapeand when it has been treated in the machine it will retain the molded shape. The rounded beveled edge of the welt as formed in the improved machine is substantially the shape which the welt assumes When it is attached to the upper and insole so that the inseam can be drawn in tightly and there is no tendency for the inseam to close up the groove during the inseam sewing operation. IThe indentations onv the upper face of the welt form pockets for the cement and give an excellent surface to which the `outsole may be attached by cement.

The welt herein disclosed forms the subject-matter of my co-pending application Serial N o. 47 ,518, led August 26, 1915.

The preferred form of the invention having been thus described, what is claimed as new 1s 1. welt tting machine, having, in combination, a knife for grooving the iesh side ofthe welt near its inner edge, and means for compressing and molding the groovededge of the welt to form a bevel and bead on the grain side of the welt.

2. A welt fitting machine, having, in combination, a knife for grooving the flesh side of the welt near its inner edge, and a pair of coperatingrolls for compressing and molding the. grooved edge of the welt to form a bevel and bead on the grain side of the welt.

3. A welt fitting machine, having, in combination, a knife for grooving the-fiesh side of the welt near its inner edge, means for compressing and molding the grooved edge of the welt to form a bevel on the grain side of the welt, and mechanism for lacing a series of indentations on the'lesii side of the welt to roughen its under face and lengthen the outer edge.

4. A'Welt fitting machine, having, in combination, a knife for grooving the flesh side of the Welt near its innei1 edge, and a series of pairs of coperating rolls for compressing and molding the grooved edge of the Welt to progressively form a bevel and bead on the grain side of the Welt.

5. A welt fitting machine, having, in combination, a knife for grooving the flesh side of the Welt near its inner edge, a pair of cooperating rolls to engage the opposite sides of the welt for compressing and molding the grooved edge of the welt, and a series of feeding teethpon the roll engaging the liesh side of the welt to roughen the face of the Welt and lengthen the outer edge.

6. A welt fitting machine, having, in combination, a guide for the inner edge of the welt, a knife for grooving the welt, means for compressin `and molding the grooved edge of the We t to consolidate the groove and form a bevel, and a plurality of feed rolls having teeth to hold the welt from edgewise movement while it -is being grooved and beveled.

7 A welt itting machine, having, in combination, a guide for the inneredge of the welt, a knife for groovingthe inner ed e of the Welt, means for compressing and mol ing the grooved edge of the welt to consoli-- date the groove and form a bevel, and a feed roll in advance of the knife to yieldingly engage the Welt.

8. A welt fitting machine, having, in combination, aknife for grooving the welt a pair of coperating compressing and molding rolls to compress the groove and form a bevel on the welt opposite the groove, a guide for the grooved ed e of the welt which is adjustable to vary t e distance of the groove from the edge of the welt, and means for. holdin the we t against the guide.

9. A we t fitting machine, having, in combination, a knife for grooving the iesh side 0f the welt near its inner edge, and molding and compressing rolls for engaging opposite sides of the welt, theI roll in engagement with the grooved side having` a rib to compress and consolidate the groove and the roll in engagement with the grain side of the welt, having a peripheral groove to compress and mold a bead and bevel on the inner edge of the welt opposite the groove.

10. A Welt fitting machine, having, in combination, a knife for grooving the welt, a plurality of pairs of rolls for molding and compressing the welt, and a series of teeth neaeeo on each pair of rolls to engage the grooved face of the Welt to place indentations in the Welt, the teeth of the succeeding rolls being of di'erent lengths to progresslvely enlarge the indentations` 11; A Welt tting machine, having, in combination, a moistener having guides to conduct a single strand of Welt through a moistening liquid, a Welt guide, a knife for grooving the Welt, and a plurality of rolls to compress and mold a bevel and bead onthe' moistened grooved edge of the Welt.

12. A Welt fitting machine, having, in Comhina-tion, a grooving knife, ya carrier for the knife, a deiector formed on the carrier near the cutting point to carry Jbhe shavings away from the work, and a plurality of coperating rolls for compressing and molding a bevel on the grooved edge of the Welt.

18. A Welt fitting machine, having, in combination, means for cutting one face of the Welt near an edge, anda series of pairs of coperating rolls for compressing and molding the out edge of the Welt to form a groove and bevel, each pair of said rolls being arranged to form dierent parts ofthe groove and bevel.

14. A Welt fitting machine, having, in combination, a grooving knife to groove one side of the Welt at its inner edge, and a series of pairs of rolls for compressing and molding the Welt to form a bead and bevel opposite the groove, one roll of each of said pairs having a rib to engage the groove of the Welt, and the other roll of ysaid pairs having a peripheral groove located opposite the rib on the first rolls, said ribs and grooves on the different sets of rolls being arranged to operate on different portions of the bead and bevel.

15., A Welt fitting machine, having, in combination, means for feeding the Welt,y a grooving knife; a carrier for the knife, and a gage pivoted/on said carrier and movable into and out of position to determine theset ting of the cutting edge of the knife.

Janes aenioean 

